"Suddenly, he saw the man struggling. There was a lot of blood in the water," said a witness of the shark attack.
"Fatal shark attacks are rare today and the chances of discovering an archaeological case are incredibly small," explained researcher J. Alyssa White.
The incident is Australia's first fatal shark attack in 2021, after a record eight were seen in 2020 in the country.
Adrienne Wikso said she has been surfing most of her life, but never believed she would be battling for her life against a shark.
In 2015, Chris Blowes was attacked by a great white shark. Now, more than five years later, he has finally won the right to keep the shark tooth left behind in his surfboard.
Brook Toussaint, a 26-year-old veterinary student, was swimming with several others off the Caribbean island of St. Kitts on January 9 when a tiger shark went for her.
Two people, a teenage girl and a man, have been bitten by sharks within three miles of each other, though their injuries are not life-threatening.
The nine-year-old boy was hospitalized and underwent surgery to treat his wound.
A father and son had to swim for over half an hour to reach safety after their vessel was repeatedly flipped over by a shark.
The man was rushed to hospital in critical condition where he underwent surgery.
Paramedics said it was a "remarkable" survival story.
The 17-year-old was trying to find his surfboard when the shark attacked him.
Andrew Sharpe was killed by a great white shark while surfing with friends on October 9.
Officials said the shark responsible for the attack was a six-foot-long oceanic whitetip.
"I look over, and I see a dorsal fin! I said 'oh man, that thing's coming right towards me,'" Erik "Marty" Martynuik said of his suspected shark encounter in waters off Emerald Isle, Carteret County.
The shocking footage shows the exact moment of the fatal encounter, with the large ocean predator caught on camera quickly grabbing the sea lion and thrashing its body from side-to-side.
The new "20/20" special chronicles Paige Winter's recovery after being attacked by a shark in 2019. It follows her through receiving a prosthetic leg, as well as important high school milestones.
The tooth measures around 1.8 inches long and 1.1 inches wide.
The man suffered severe injuries to his leg and paramedics were unable to save him.
The woman's swimming partner said "many years of New York self-defense classes" helped her wrestle her hand from the animal's mouth.
The couple were surfing off Shelly Beach, Port Macquarie, in New South Wales on a stretch of Australian coast that has seen three shark attacks this year.
A surfer in Florida was attacked by a shark on Friday.
Witnesses said other surfers rushed to his aid at the time of the attack.
Beach safety officials said the shark bite was the third such incident recorded this year in Volusia County.
The 29-year-old woman told local reporters "I still love sharks. Sharks are beautiful," on her way to the hospital.
The fifteen-year-old boy died after a shark injured his leg while surfing in New South Wales.
"They did everything they could to try and save his life, but despite their best efforts, were unable to do so," a local ambulance inspector said.